# Ch 34: Praxis Mathematics: Data

### About This Chapter

## Praxis Mathematics: Data - Chapter Summary

Questions about data analysis and statistics will be found on the Praxis Mathematics: Content Knowledge exam. This chapter is designed to give you the tools to answer those questions. Through video lessons, you'll receive in-depth instruction in the following subjects:

- Organizing and understanding data with tables and schedules
- Creating and interpreting scatter plots and histograms
- Calculating the mean, median, mode and range
- Describing the relationship between two quantitative variables
- Standard deviation and shifts in the mean
- Central tendency and dispersion

Each focused lesson presents content in a way that makes concepts easier to grasp. In addition to mathematics content, the lessons in this chapter provide helpful tips for answering the types of questions you'll see on the real exam. You can get in some extra practice when you take the self-assessment quizzes that follow the lessons.

### Praxis Mathematics: Data Objectives

Data Analysis and Statistics Probability is one of five content categories on the Praxis Mathematics: Content Knowledge exam. Questions about data can make up 10-12% of the exam's 50 total multiple-choice questions. This chapter's lessons will help you answer these questions when you learn to organize data into suitable forms and choose and apply measures to describe and compare data sets.

The Praxis series of exams is a customary part of the teacher licensure program in several states. Praxis exams focus on ensuring that candidates for teacher licensure have the content knowledge and pedagogy skills that are common for beginning teachers. The 2-hour Praxis Mathematics: Content Knowledge test is particularly concerned with how well you know math that would be taught at the secondary school level. You'll need to exhibit solid reasoning, problem-solving, and application skills as well as proficiency in a broad range of mathematical areas. Most individuals who take the Praxis Mathematics: Content Knowledge test have a minimum of a bachelor's degree in mathematics or mathematics education.

### 1. Organizing and Understanding Data with Tables & Schedules

In math, when we have to deal with a lot of data, having a visual format to present all the data becomes very useful. Watch this video lesson to learn how you can take advantage of two of these visual formats.

### 2. How to Calculate Mean, Median, Mode & Range

Measures of central tendency can provide valuable information about a set of data. In this lesson, explore how to calculate the mean, median, mode and range of any given data set.

### 3. Describing the Relationship between Two Quantitative Variables

In this video lesson, you will learn about quantitative variables, what they are, and how one variable relates to another. You will learn why this is important and why it can sometimes even save lives.

### 4. Calculating the Standard Deviation

In this lesson, we will examine the meaning and process of calculating the standard deviation of a data set. Standard deviation can help to determine if the data set is a normal distribution.

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### Other Chapters

Other chapters within the Praxis Mathematics - Content Knowledge (5161): Practice & Study Guide course

- Praxis Mathematics: Counting Numbers Properties
- Praxis Mathematics: Rational and Irrational Numbers
- Praxis Mathematics: Solving Problems with Reasoning
- Praxis Mathematics: Percents
- Praxis Mathematics: Ratios and Proportions
- Praxis Mathematics: Scientific Notation & Order of Magnitude
- Praxis Mathematics: Algebraic Expressions
- Praxis Mathematics: Algebraic Equations
- Praxis Mathematics: Algebraic Fractions
- Praxis Mathematics: Linear Equations
- Praxis Mathematics: Systems of Equations
- Praxis Mathematics: Radicals Operations
- Praxis Mathematics: Exponents
- Praxis Mathematics: Distance
- Praxis Mathematics: Functions
- Praxis Mathematics: Inverse Functions
- Praxis Mathematics: Logarithmic Functions
- Praxis Mathematics: Rational Functions
- Praxis Mathematics: Complex Numbers Operations
- Praxis Mathematics: Sequences, Series & Probability
- Praxis Mathematics: Combinations & Permutations
- Praxis Mathematics: Quadratic Equations
- Praxis Mathematics: Polynomials
- Praxis Mathematics: Matrix Algebra
- Praxis Mathematics: Algebraic Formulas
- Praxis Mathematics: Measurement
- Praxis Mathematics: Area
- Praxis Mathematics: Polygons
- Praxis Mathematics: Quadrilaterals
- Praxis Mathematics: Circles
- Praxis Mathematics: Triangles
- Praxis Mathematics: Congruence, Similarity and Transformations
- Praxis Mathematics: Three-Dimensional Space and Volume
- Praxis Mathematics: Distributions
- Praxis Mathematics: Graphing
- Praxis Mathematics: Trigonometry
- Praxis Mathematics: Continuity
- Praxis Mathematics: Asymptotes
- Praxis Mathematics: Limits
- Praxis Mathematics: Derivatives
- Praxis Mathematics: Integrals
- Praxis Mathematics: Optimization and Differentiation
- Praxis Mathematics: Theorems
- Praxis Mathematics: Statistics
- Praxis Mathematics: Interpreting Statistics
- Praxis Mathematics: Understanding Logic
- Praxis Mathematics: Content Knowledge Flashcards